Whoever strives to be patient, Allah gives him patience. No one has been given a gift better and vaster than patience.
وَمَنْ يَتَصَبَّرْ يُصَبِّرْهُ اللَّهُ، وَمَا أُعْطِيَ أَحَدٌ عَطَاءً خَيْرًا وَأَوْسَعَ مِنَ الصَّبْرِ
Ve men yetesabber yusabbirhu'llâh; ve mâ u'tıye ehadün atâen hayran ve evsea mine's-sabr.
Bukhari, Zakat, no. 1469 (from Abu Sa'id al-Khudri).
Some of the Ansar ask the
Prophet for something; he gives until what he has runs out.
Then he says these words: whoever strives to be patient, Allah gives him patience.
The hadith does not count patience as an inborn trait; it speaks of it as a blessing earned through effort.
The first step is the servant's; the rest is grace.
This is the last gift of a hand with no wealth left to give: there is no gift better or vaster than patience.